Frame is not changing your behavior to suit them because you are afraid they will leave you. When you first meet a woman your frame will be strong, you will be confident, funny and take no crap, since you are out to get the girl and will have nothing to lose, At the same time the woman, if she likes you, will be on her best behavior so that she can reel you in.
Somewhere between 6-12 months, after the honeymoon period is over, her true colors will show. She will "****" test and try to gain power/upper hand over you. She will try to "change" you. Things you got away in the past will be no more. You could have spit in his face when you first dating her but she still won't leave you because she is reeling you in, But now after 6-12 months even if you sneeze she will have some bad things to say.
Most men at this point will yield. They will change their initial behavior ie frame , to be nicer to the women because he fears losing her. This is the point you hand over your balls to her, She will know now, that you need her more than she needs you. She will have POWER and control over you.
At this point its game over for you. Ultimately she will leave.
Unfortunately when it comes to this point , EVEN if you keep your frame, the relationship has probably run it course. Usually its another guy involved and she's using that to gain power over you. But by keeping your frame, you keep your self confidence and dignity intact to pursue other women.
Remember ultimately most relationships END, Even if you get married the chances you will remain happily married are SLIM,
Key is to spin plates and NEVER be afraid to WALK AWAY. Keeping your frame sends her the message, that you can WALK AWAY.